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Finding the Fourth Proportional to 102,873.33, 154,337.72 and 42,881.87

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Solution

The fourth proportional to 102,873.33, 154,337.72 and 42,881.87 is: 64,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,873.33 : 154,337.72 = 42,881.87 : x
  2. Step 2: Convert to fraction form
    102,873.33/154,337.72 = 42,881.87/x
  3. Step 3: Cross multiply
    102,873.33x = 154,337.72 × 42,881.87
  4. Step 4: Simplify right side
    102,873.33x = 6,618,289,380.65
  5. Step 5: Solve for x
    x = 6,618,289,380.65/102,873.33
  6. Step 6: Final answer
    x = 64,334.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.